kotlin 异步线程简单事例，加http请求，异步线程之间的通信

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首先编辑异步线程方法

/** * @param url 请求网址 * **/public fun thread(url : String) : Thread{    val thread = object : Thread(){        override fun run() {            super.run()            var request = URL(url).readText()            Log.d("---->request",request)        }    }    thread.start()    return thread}

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在UI线程直接调用

thread(url)

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也可以volley 等架包

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与ui线程进行数据传输handler

var handler = object : Handler() {    override fun handleMessage(msg: Message) {        super.handleMessage(msg)        when(msg.what){         MESSAGE->main_text!!.text = msg.obj.toString()        }    }}线程写法public fun thread(url : String) : Thread{    val thread = object : Thread(){        override fun run() {            super.run()            var request = URL(url).readText()            var msg = Message()            msg.what = MESSAGE            msg.obj = request            handler.sendMessage(msg)        }    }    thread.start()    return thread}
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